Yes, for 1 Female to Male trans, there is 3 Male to Female trans (source), and this proportion is almost the same in all countries where you don't get executed for being transsexual.
I don't know if there is a scientific/biological cause to this disproportion, but we can argue that it totally destroy the argument of the SJW that being a man is an enviable position (because of the supposed privileges that go with it). If 3x more of lottery winners (being born male) want to change to the lower status sex than the opposite, maybe being a man is not the most comfortable social status.